# NSI: Certification for security and fire protection companies

> The UK's top security and fire safety companies are approved by the National Security Inspectorate \(NSI\)\. Look for the NSI Gold \& Silver hallmarks of approval

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## Pages
- [NSI NCP 109 Requirements Course](https://www.nsi.org.uk/approved-companies/training/nsi-ncp-109-requirements-course/)
- [NSI \& BAFE SP205 Requirements](https://www.nsi.org.uk/approved-companies/training/nsi-ncp-sp205-requirements-course/)
- [Training](https://www.nsi.org.uk/approved-companies/training/)
- [Best Practice for Internal Quality Auditing for BS EN ISO 9001:2015](https://www.nsi.org.uk/approved-companies/training/best-practice-for-internal-quality-auditing-for-electronic-security-organisations/)
- [PD6662:2017 \(Intruder Alarm Systems\) with BS 8243 and Risk Assessment](https://www.nsi.org.uk/approved-companies/training/pd66622017-intruder-alarm-systems/)

## Posts
- [NSI New Certifications \- July 2026](https://www.nsi.org.uk/nsi-new-certifications-july-2026-2/)
- [Security Matters Magazine \- On Inspection by Richard Fogelman, NSI CEO June 2026](https://www.nsi.org.uk/security-matters-magazine-on-inspection-by-richard-fogelman-nsi-ceo-june-2026/)
- [NSI Re\-certifications \- June 2026](https://www.nsi.org.uk/nsi-re-certifications-june-2026/)
- [PSI Magazine \- Meet the NSI Installer July 2026](https://www.nsi.org.uk/psi-magazine-meet-the-nsi-installer-july-2026/)
- [The risk of misunderstanding today's Fire Safety buyer](https://www.nsi.org.uk/the-risk-of-misunderstanding-todays-fire-safety-buyer/)

## Case Studies
- [Dave Daulby](https://www.nsi.org.uk/case-study/davedaulby/)
- [Ecl\-ips](https://www.nsi.org.uk/case-study/ecl-ips/)
- [Lansafe](https://www.nsi.org.uk/case-study/lansafe/)
- [Link CCTV Systems](https://www.nsi.org.uk/case-study/link-cctv-systems/)
- [Securitatem](https://www.nsi.org.uk/case-study/securitatem/)

## Questions
- [How can I specify a CCTV system?](https://www.nsi.org.uk/question/how-can-i-specify-a-cctv-system/)
- [Why should I choose an NSI approved company?](https://www.nsi.org.uk/question/why-should-i-choose-an-nsi-approved-company-2/)
- [Why has my insurer insisted that I contract with an NSI approved company?](https://www.nsi.org.uk/question/why-has-my-insurer-insisted-that-i-contract-with-an-nsi-approved-company/)
- [What is a Unique Reference Number \(URN\)?](https://www.nsi.org.uk/question/what-is-a-unique-reference-number-urn/)
- [I’ve heard that the traditional telephone line service to my premises will be discontinued in the near future and replaced with IP \(Internet Protocol\) voice services over broadband\. Will this affect my alarm system and what should I do about it?](https://www.nsi.org.uk/question/ive-heard-that-the-traditional-telephone-line-service-to-my-premises-will-be-discontinued-in-the-near-future-and-replaced-with-ip-internet-protocol-voice-services-over-broadband-will-this/)

## Bulletins
- [NSI Bulletin \- Issue 7](https://www.nsi.org.uk/bulletin/the-transported-asset-protection-association-tapa/)
- [NSI Bulletin \- Issue 10](https://www.nsi.org.uk/bulletin/nsi-bulletin-issue-10/)
- [NSI Bulletin \- Issue 9](https://www.nsi.org.uk/bulletin/nsi-bulletin-issue-9/)
- [NSI Bulletin \- Issue 8](https://www.nsi.org.uk/bulletin/nsi-bulletin-issue-8/)
- [NSI Bulletin \- Issue 5](https://www.nsi.org.uk/bulletin/nsi-bulletin-issue-5/)

## Categories
- [uncategorized](https://www.nsi.org.uk/category/uncategorized/)
- [News Articles](https://www.nsi.org.uk/category/news-articles/)

## FAQ Sections
- [Alarm systems](https://www.nsi.org.uk/faqsections/alarm-systems/)
- [FAQs for Applicants \& Approved Companies](https://www.nsi.org.uk/faqsections/faqs-for-applicants-approved-companies/)
- [Training General Questions](https://www.nsi.org.uk/faqsections/training-general-questions/)
- [About alarm monitoring](https://www.nsi.org.uk/faqsections/about-alarm-monitoring/)
- [General questions](https://www.nsi.org.uk/faqsections/general-questions/)

## Optional
- [Sitemap index](https://www.nsi.org.uk/sitemap_index.xml)